The clear pen barrel makes it easy to see the liquid inside the pen and makes it easy to fill up (not over-fill). They can hold up to 3ml of liquid colour and have the measurements in ml on the side of the pen.

The chisel nib is good for filling in areas of colour and writing and calligraphy. Spare nibs are also available in packs.

Shake FW Mixed Media Paint Markers before use and clean with water when changing the ink colour.